Invention Grant
- Patent Title: Method and apparatus for providing downlink reference signal transmission power information in a wireless communication system that supports multiple antennas
- Patent Title (中): 在支持多个天线的无线通信系统中提供下行链路参考信号传输功率信息的方法和装置
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Application No.: US13394327Application Date: 2010-10-12
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Publication No.: US08750257B2Publication Date: 2014-06-10
- Inventor: Jae Hoon Chung , Moon Il Lee , Min Seok Noh , Hyun Soo Ko
- Applicant: Jae Hoon Chung , Moon Il Lee , Min Seok Noh , Hyun Soo Ko
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Lee, Hong, Degerman, Kang & Waimey
- International Application: PCT/KR2010/006974 WO 20101012
- International Announcement: WO2011/046349 WO 20110421
- Main IPC: H04B7/216
- IPC: H04B7/216 ; H04B7/26 ; H04B1/7073
Abstract:
A method and an apparatus for providing downlink reference signal transmission power information in a wireless communication system that supports multiple antennas, where one embodiment of the method includes: a step of mapping a main synchronous signal onto a predetermined OFDM symbol of a downlink pilot time slot (DwPTS) subframe; a step of mapping, in a code division multiplexing manner, a demodulation reference signal over two or more OFDM symbols containing the predetermined OFDM symbol in the DwPTS subframe; a step of transmitting the DwPTS subframe to which the main synchronous signal and the demodulation reference signal are mapped; and a step of transmitting information on the transmission power for transmitting the demodulation reference signal mapped onto the predetermined OFDM symbol.
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